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What is true about updates through a view?（）
- A、You cannot update a view with group functions.
- B、When you update a view group functions are automatically computed.
- C、When you update a view only the constraints on the underlying table will be in effect.
- D、When you update a view the constraints on the views always override the constraints on the underlying tables.
参考答案
更多 “What is true about updates through a view?（）A、You cannot update a view with group functions.B、When you update a view group functions are automatically computed.C、When you update a view only the constraints on the underlying table will be in effect.D、When you update a view the constraints on the views always override the constraints on the underlying tables.” 相关考题
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